Factors Affecting Enf Based Time-of-recording Estimation for Video
Küçük Resim Yok
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
Özet
ENF (Electric Network Frequency) oscillates around a nominal value (50/60 Hz) due to imbalance between consumed and generated power. The intensity of a light source powered by mains electricity varies depending on the ENF fluctuations. These fluctuations can be extracted from videos recorded in the presence of mains-powered source illumination. This work investigates how the quality of the ENF signal estimated from video is affected by different light source illumination, compression ratios, and by social media encoding. Also explored is the effect of the length of the ENF ground-truth database on time of recording detection and verification. © 2019 IEEE.
Açıklama
44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 -- 2019-05-12 through 2019-05-17 -- Brighton -- 149034
Anahtar Kelimeler
electric network frequency, ENF, time-of-recording, video forensics
Kaynak
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
2019-May
